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Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?
[2008]
- a)GUU, GCU-Alanine
- b)UAG, UGA-Stop
- c)AUG, ACG-Start/Methionine
- d)UUA, UCA-Leucine
Correct answer is option 'B'. Can you explain this answer?
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Which one of the following pairs of codons is correctly matched with t...
GCU indicates alanine but GUU indicates valine. Stop codons are UAG, UGA and UAA AUG is the most common start codon which does for methionine. UUA indicates leucine but UCA indicates serine.
Most Upvoted Answer
Which one of the following pairs of codons is correctly matched with t...
Correct Answer: B) UAG, UGA-Stop
Explanation:
The genetic code is the set of rules by which information encoded in DNA or RNA sequences is translated into proteins. It consists of a series of codons, each codon being a sequence of three nucleotides that corresponds to a specific amino acid or a stop signal.
Codons and their Functions:
- GUU: This codon codes for the amino acid Valine (Val).
- GCU: This codon codes for the amino acid Alanine (Ala).
- UAG: This codon serves as a stop signal, indicating the termination of protein synthesis. It does not code for any amino acid.
- UGA: This codon also serves as a stop signal, indicating the termination of protein synthesis. It does not code for any amino acid.
- AUG: This codon serves as the start codon, indicating the initiation of protein synthesis. It codes for the amino acid Methionine (Met).
- ACG: This codon codes for the amino acid Threonine (Thr).
Explanation of the Correct Answer:
The correct answer is option B) UAG, UGA-Stop. The codons UAG and UGA are both stop codons, which means they do not code for any amino acid. Instead, they signal the termination of protein synthesis. When a ribosome encounters either of these codons during translation, it releases the newly synthesized protein and the translation process is halted.
The other options are incorrect:
- Option A) GUU, GCU-Alanine: GUU codes for Valine, not Alanine. GCU codes for Alanine.
- Option C) AUG, ACG-Start/Methionine: AUG is indeed the start codon, but it codes for Methionine, not Threonine. ACG codes for Threonine.
- Option D) UUA, UCA-Leucine: UUA codes for Leucine, but UCA codes for Serine, not Leucine.
Therefore, the correct answer is option B) UAG, UGA-Stop, as UAG and UGA are stop codons that signal the termination of protein synthesis.
Explanation:
The genetic code is the set of rules by which information encoded in DNA or RNA sequences is translated into proteins. It consists of a series of codons, each codon being a sequence of three nucleotides that corresponds to a specific amino acid or a stop signal.
Codons and their Functions:
- GUU: This codon codes for the amino acid Valine (Val).
- GCU: This codon codes for the amino acid Alanine (Ala).
- UAG: This codon serves as a stop signal, indicating the termination of protein synthesis. It does not code for any amino acid.
- UGA: This codon also serves as a stop signal, indicating the termination of protein synthesis. It does not code for any amino acid.
- AUG: This codon serves as the start codon, indicating the initiation of protein synthesis. It codes for the amino acid Methionine (Met).
- ACG: This codon codes for the amino acid Threonine (Thr).
Explanation of the Correct Answer:
The correct answer is option B) UAG, UGA-Stop. The codons UAG and UGA are both stop codons, which means they do not code for any amino acid. Instead, they signal the termination of protein synthesis. When a ribosome encounters either of these codons during translation, it releases the newly synthesized protein and the translation process is halted.
The other options are incorrect:
- Option A) GUU, GCU-Alanine: GUU codes for Valine, not Alanine. GCU codes for Alanine.
- Option C) AUG, ACG-Start/Methionine: AUG is indeed the start codon, but it codes for Methionine, not Threonine. ACG codes for Threonine.
- Option D) UUA, UCA-Leucine: UUA codes for Leucine, but UCA codes for Serine, not Leucine.
Therefore, the correct answer is option B) UAG, UGA-Stop, as UAG and UGA are stop codons that signal the termination of protein synthesis.
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Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?[2008]a)GUU, GCU-Alanineb)UAG, UGA-Stopc)AUG, ACG-Start/Methionined)UUA, UCA-LeucineCorrect answer is option 'B'. Can you explain this answer?
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Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?[2008]a)GUU, GCU-Alanineb)UAG, UGA-Stopc)AUG, ACG-Start/Methionined)UUA, UCA-LeucineCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?[2008]a)GUU, GCU-Alanineb)UAG, UGA-Stopc)AUG, ACG-Start/Methionined)UUA, UCA-LeucineCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?[2008]a)GUU, GCU-Alanineb)UAG, UGA-Stopc)AUG, ACG-Start/Methionined)UUA, UCA-LeucineCorrect answer is option 'B'. Can you explain this answer?.
Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?[2008]a)GUU, GCU-Alanineb)UAG, UGA-Stopc)AUG, ACG-Start/Methionined)UUA, UCA-LeucineCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?[2008]a)GUU, GCU-Alanineb)UAG, UGA-Stopc)AUG, ACG-Start/Methionined)UUA, UCA-LeucineCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?[2008]a)GUU, GCU-Alanineb)UAG, UGA-Stopc)AUG, ACG-Start/Methionined)UUA, UCA-LeucineCorrect answer is option 'B'. Can you explain this answer?.
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